Electrical switch-throwing mechanism.



J. A. ROSS.

ELECTRICAL SWITCH THROWING MECHANISM.

APPLICATION FILED JUNE 28, 1910. v

Patented Jan. 5, 1915.

2 SHEETSSHEET 1.

JAMES 1% 5 055 I HE NORRIS PETERS c0 7 PHOTO-LITHII; WASHINLIIVH, 0V V J A. ROSS.

ELECTRICAL SWITCH THEOWING MECHANISM.

APPLICATION FILED JUNE 28, 1910.

1,188,926., Patented Jan.5,1915.

2 BHEETSSHEET 2.

JQ/WES 4 F035,

THE NORRIS PETER; 60., FHo'TO-LITHQ, WASHINGTON, D C

unrrnn snares rarnnr entree.

JAMES ALFRED EOSiS, OF ALTOONA, PENNSYLVANIA, .ASSIGNGR O3? ONE-HALF TO EDWARD J. BIGLEY, F ALTGONA, PENNSYLVANIA.

ELECTRICAL SWITGH'TI-IROWNING- MECHANISM.

Specification of Letters Patent.

Patented Jan. 5, 1915.

Application filed June 28, 1910. serial No. 569,334.

To all whom it may concern:

Be it known that 1, JAMES A. Boss, a citizen of the United States, residing at Altoona, in the county of Blair and State of Pennsylvania, have invented certain new and useful Improvements in Electrical Switch- Throwing Mechanism, of which the following is a specification.

This invention relates to switch-throwing mechanism for street railways, particularly of the type wherein the throwing of the switch point in either direction is controlled b the motorman on the car.

To this end the invention has in View certain novel and practical improvements, associated with both the track equipment and the trolley equipment for the car, whichinsure an eflicient operation.

A further object of the invention is to provide a switclrthrowing mechanism utilizing the current from the trolley wire to operate the switch actuating means.

lVith these and many other objects in view, which will more readily appear as the nature of the invention is better understood, the same consists in the novel construction, combination and arrangement of parts here-- inafter more fully described, illustrated and claimed.

l/Vhile susceptible to structural modification, a preferred and practical embodiment of the invention is shown in the accompanying drawings, in which Figure 1 is a plan view, showing in diagram the track and switch, and the trolley equipment, including the car. Fig. 2 is a diagrammatic side elevation of the same equipment. Fig. 3 is a cross-sectional view of the switch actuating means, the line of section being substantially on the line 33 of Fig. 1 of the drawing. Fig. 4- is a sectional elevation of the trolley and trolley wire equipment which cooperates with the switch-actuating means. Fig. 5 is a detail side elevation of the circuit closer frame carrying the trolley wire contact. Fig. 6 is a side elevation of the base part of the trolley pole equipment. Figs. 7 and 8 are plan and sectional views respectively of the operators switch.

Like references designate corresponding parts in the several figures of the drawings.

Referring to the embodiment of the invention illustrated in the drawings, the number 10 designates the street car, 11 the track and 12 the switch point. To the latter is suitably connected an actuating rod 13 operating through a guide it and connected at its end opposite the switch point connec tion to a bell crank lever 15 mounted in a housing 16 inclosed by a cover 17. A rod 18 connects with one arm of the bell crank 15. extends into a magnet box 19 and is connected at its upper end to an armature 20, which plays between the poles 21 of a pair of spaced, but axially alined, electromagnets 22. One wire a from each magnet is connected with the trolley wire 23, while the other wire 6 from each magnet leads to the circuit closing device designated in its entirety by the reference number 2% and sus pended above the trolley wire, and over the latter, by means of suitable hangers or suspenders 2 The said circuit closing device essentially comprises an inverted U-shaped frame placed astride the trolley wire 23 and having fitted to the opposite side legs thereof the insulating block 25 to the inner faces of which are fitted the longitudinally arranged contact strips or plates 26, to which plates are connected the ends of the wire 6. The said plates 26 constitute what has been termed herein the trolley wire contact.

The trolley harp 27 carries a suitable protecting guard 28 against cross wires and which guard has its opposite portions above the contacts 26. In addition to this guard the harp 27 is provided with oppositely arranged angled trolley shoes 29 adapted to have a wiping contact against the trolley wire contacts 26, and to the said shoes 29 are connected the current conducting wires 0 c, which pass through the trolley pole 30 and are branched to the base part of the trolley pole mounting, and are connected with the wire terminal plates 31, which are carried by the swivel plate 32 which is swiveled on the base plate 33 as at 34:, said base plate being mounted on the car top in the usual position. The wire terminal plates 31 have contact with contacting segments 35 on the base plate 33, and said ring has wire connections d, (Z, therewith, which latter lead to the operators or motormans switch S, to be presently referred to.

The trolley pole 30 is provided at its lower end with a journal head 36 provided with hollow gudgeons 37 journaled in bearings 38 at the upper end of the bearing pedestals 39 carried by the swivel plate 32.

fad

The operators or motormans hand switch S includes a switch arm 40 carrying the circuit return wire 41 and provided with a contact boss 42 adapted to engage with either of the switch points as which are in metallic connection with the circuit wires (Z, (Z, from the base part of the trolley mounting. The switch arm 40 also carries a spring pressed holding pawl ie adapted to engage the keeper notches or holes 45 on the base of the switch, thereby providing in'eahs iEor retaining the switch arm or handle in a properly adjusted position.

Assuming the trolley wire to be charged with a positive current and the wiring connected as described, it will be obvious that when the motor-man closes his switch on either of the points e3, and the trolley harp is in the position shown in Figs. at and 5, one of the magnets 22 will become energized and thus provide for throwing the switch inone direction. According to the switch point 43 upon which the moto'rman throws the switch arm, the direction of throw of the switch point may be controlled by him, as will be obvious.

I claim s A switch point throwing'mechanism coinprising a circuit closer adapted to be placed astride a trolley wire and having pendent side legs, nietal contacts on the inner sides of said legs, means for supporting said circuit closer, electrically, operated switch point operating means included in the circuit with said circuit closer, a trolley pole carrying a harp, oppositely disposed angle shoes carried by the harp and having a wiping contact with the contacts on the interior of the circuit closer, a swiveled base supporting a trolley pole, a stationary base support upon which the 's'wiveled base is mounted, wire terininal plates carried by the swiveled base and having wire connections with said shoes, contact segments carried by the stationary base and contacting with said terminal plates, an operators switch including separate switch points and a third wire connection adapted to be connected with either of said switch points, and wire connections between the switch and said segments.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

JAMES ALFRED BOSS.

Witnesses: V

N. E. GEE, E. J. BIGLEY.

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Washington; D. G. 

